Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2025-38178 First vendor Publication 2025-07-04
Vendor Cve Last vendor Modification 2025-07-04

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

EDAC/igen6: Fix NULL pointer dereference

A kernel panic was reported with the following kernel log:

EDAC igen6: Expected 2 mcs, but only 1 detected.
BUG: unable to handle page fault for address: 000000000000d570
...
Hardware name: Notebook V54x_6x_TU/V54x_6x_TU, BIOS Dasharo (coreboot+UEFI) v0.9.0 07/17/2024
RIP: e030:ecclog_handler+0x7e/0xf0 [igen6_edac]
...
igen6_probe+0x2a0/0x343 [igen6_edac]
...
igen6_init+0xc5/0xff0 [igen6_edac]
...

This issue occurred because one memory controller was disabled by the BIOS but the igen6_edac driver still checked all the memory controllers, including this absent one, to identify the source of the error. Accessing the null MMIO for the absent memory controller resulted in the oops above.

Fix this issue by reverting the configuration structure to non-const and updating the field 'res_cfg->num_imc' to reflect the number of detected memory controllers.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-38178

Sources (Detail)

https://git.kernel.org/stable/c/40e69c93d6dadc5355bfe90f3940c402d171289c
https://git.kernel.org/stable/c/88efa0de3285be66969b71ec137d9dab1ee19e52
Source Url

Alert History

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0
Date Informations
2025-07-04 21:20:36
  • First insertion